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Shader compile thread seperation
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Aiden
2026-05-06 14:11:18 +10:00
parent 6502344d0a
commit 08e039aebe
14 changed files with 321 additions and 107 deletions
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58
apps/LoopThroughWithOpenGLCompositing/gl/TextRasterizer.cpp
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@@ -5,10 +5,8 @@
#include <algorithm>
#include <cmath>
#include <cstring>
#include <fstream>
#include <gdiplus.h>
#include <memory>
#include <sstream>
namespace
{
@@ -163,61 +161,6 @@ std::vector<unsigned char> BuildTextSdfTexture(const std::vector<unsigned char>&
return sdf;
}
void WriteTextMaskDebugDump(const std::string& text, const std::vector<unsigned char>& alpha, const std::vector<unsigned char>& sdf, unsigned width, unsigned height)
{
try
{
std::filesystem::path debugDir = std::filesystem::current_path() / "runtime";
std::filesystem::create_directories(debugDir);
auto writePgm = [width, height](const std::filesystem::path& path, const std::vector<unsigned char>& gray, std::size_t stride)
{
std::ofstream out(path, std::ios::binary);
if (!out)
return;
out << "P5\n" << width << " " << height << "\n255\n";
for (unsigned y = 0; y < height; ++y)
{
for (unsigned x = 0; x < width; ++x)
out.put(static_cast<char>(gray[(static_cast<std::size_t>(y) * width + x) * stride]));
}
};
writePgm(debugDir / "text-mask-alpha-debug.pgm", alpha, 1);
writePgm(debugDir / "text-mask-sdf-debug.pgm", sdf, 4);
unsigned alphaMin = 255;
unsigned alphaMax = 0;
unsigned sdfMin = 255;
unsigned sdfMax = 0;
std::size_t alphaLit = 0;
std::size_t sdfLit = 0;
for (unsigned char value : alpha)
{
alphaMin = std::min<unsigned>(alphaMin, value);
alphaMax = std::max<unsigned>(alphaMax, value);
if (value > 0)
++alphaLit;
}
for (std::size_t index = 0; index < sdf.size(); index += 4)
{
const unsigned char value = sdf[index];
sdfMin = std::min<unsigned>(sdfMin, value);
sdfMax = std::max<unsigned>(sdfMax, value);
if (value > 127)
++sdfLit;
}
std::ostringstream message;
message << "Text mask debug for '" << text << "': alpha min/max/lit=" << alphaMin << "/" << alphaMax << "/" << alphaLit
<< ", sdf min/max/gt127=" << sdfMin << "/" << sdfMax << "/" << sdfLit << "\n";
OutputDebugStringA(message.str().c_str());
}
catch (...)
{
OutputDebugStringA("Failed to write text mask debug dump.\n");
}
}
}
bool RasterizeTextSdf(const std::string& text, const std::filesystem::path& fontPath, std::vector<unsigned char>& sdf, std::string& error)
@@ -296,6 +239,5 @@ bool RasterizeTextSdf(const std::string& text, const std::filesystem::path& font
}
}
sdf = BuildTextSdfTexture(alpha, kTextTextureWidth, kTextTextureHeight);
WriteTextMaskDebugDump(text, alpha, sdf, kTextTextureWidth, kTextTextureHeight);
return true;
}